DRV8308 rotor lockup
Hi,I'm using DRV8308 for BLDC motor application. And there is a rotor lockup feature(function) on this driver.Is this can be disable? Or the only thing I can change is to write the register in...
View ArticleDRV8805 Output issue
HiMy customer is using DRV8805. He has a issue.STEP signal is not inputed, But DRV8805 output voltage to motor. Please see attached file which is detail waveform. This event isn't to add a capasitor of...
View ArticleWe are building a stepper motor position accuracy tester can we use OPA548 to...
HIWe are building a stepper motor position accuracy tester can we use OPA548 to produce a linear driver for motor, so that we can drive both phases with a current source which will be programmed from...
View ArticleDRV8305-Q1 question
Dear sirPlease do answer questions about DRV8305-Q1.Is DRV8305-Q1 possible to drive PWM input without using MCU ?best regardssean
View ArticleDRV3201, signals on Test points pin Boost(29), SW (30) .
Dear TI Team,We are using DRV3201 for BLDC motor control and prepared a HW board same as the application note SLVU846A–January 2013–Revised July 2013.No error on the ERR pin. We observe , Highside PWMs...
View ArticleDRV8303 GVDD doesn't start
Hi My customer is using DRV8303. He has a issue about charge pump. After PVDD supply is down, GVDD doesn't start even if PVDD is supplied again and EN_GATE is turned on. The PVDD supply down is test...
View ArticleDRV8332-HT Power Requirements for Resistor between GVDD power supply and...
Hi!The datasheet for the DRV8332-HT says "it is recommended to add 26-Ω resistor between the GVDD power supply and GVDD_X pins to limit the inrush current on the internal bootstrap diodes."How can I...
View ArticleDRV8711 datasheet (home position and TBLANK)
I have 2 questions on DRV8711 datasheet.1) I need to set 2.5 uS blank time. Which value should I program to BLANK register? In the BLANK register description there is range 1uS..5.12uS and values 0x00...
View ArticleDRV8711 heating
How can I calculate heating of DRV8711 in Watts?What is genral reason of IC heating?If it is internal 5V regulator (I am working at 48VDC voltage) - is it possible to decrease heating by connecting...
View ArticleDRV8828 / single H-Bridge motor driver
Hi Team,I understood DRV8828 is single H-Bridge motor driver (capable of 3A output current).Is there any dual H-Bridge stepper driver that is capable of driving up to 3A?I would also like to know why...
View ArticleDRV8301 is not resetting the faults
Using DRV8301 in our product, we are trying to intentionally trigger faults on DRV8301 and we are seeing some misbehavior from the chip:- Under load, the supply voltage drops significantly...
View ArticleDRV10983 i2c communication with msp430g2553
Hello, i am trying to read a register of drv10983 from msp430g2553 but it is not working ,so pleaselet me know where i am going wrong. here is my code : P1SEL |= BIT6 + BIT7; //...
View ArticleDRV8825EVM not working
Dear Sir ,I have just started to use the TI make DRV8825EVM and connected to the stepper motor. Using the application program i was able to connect (communicate) and then i configured the settings as...
View ArticleDRV8825 Junction-to-board thermal resistance
On the datasheet of DRV8825, Junction-to-board thermal resistance is specified as 5.6 degC/W. On the other hand, DRV8818 which is same package (PWP 28pin) is specified as 14 degC/W. Why each...
View ArticleDRV8308 Ensure safe implementation in airborne systems
DO-254/ED-80 defines two categories of hardware items.• Complex electronic hardware.• Simple electronic hardware.All flight hardware needs to be classified according to a design assurance level (DAL)....
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DRV10983EVM under Windows 8.1
Dear allI installed the eval board SW on my computer. I use Windows 8.1.For running I need the NI Labview runtime library.I...
View ArticleDRV8805 RC filter for digital input pin.
Hi My customer is using DRV8805.He wants to add RC filter for digital input pin.He wants to add RC filter for customer's product noise.Detail of pin is nENABL ,STEP and DIR.Detail of filter is...
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Difference of Timing Requirements between DRV8824 and DRV8825
Timing Requirements between DRV8824 and DRV8825 are different. Does it mean internal control logic are different between both devices?Best Regards,Hide
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It will be work!
Hi,I need some design Tips for DRV8840. Is my Design so acceptable for nFAULT and nRESET?Best Regards,baka
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